Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Sensorless Speed Control of Induction Motor using Adaptive Observer

적응관측기에 의한 유도전동기의 센서리스 속도제어

  • 오상호 (부산대학교 전기공학과) ;
  • 김성환 (부산대학교 전기공학과) ;
  • 진대원 (부산대학교 전기공학과) ;
  • 권영안 (부산대학교 전기공학과)
  • Published : 1997.07.21
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Abstract

A sensorless drive of induction motor has several advantages; low cost and mechanical simplicity. This paper investigates a field-oriented control method without speed and flux sensors. The control strategy is to design an adaptive state observer for flux estimation and to estimate the rotor speed from the estimated rotor flux and stator current. The entire control algorithm including space vector PWM is implemented by software of the digital signal processor TMS320C31. The experimental results indicate good speed responses.

Keywords